25250625

素因数分解:

$3^2\times 5^4\times {\mathrm{67}}^2$

素因数の和:160

約数の個数: 45

約数和(自身を含む): 46267221

約数和(自身を除く): 21016596

約数列:

[1, 3, 5, 9, 15, 25, 45, 67, 75, 125, 201, 225, 335, 375, 603, 625, 1005, 1125, 1675, 1875, 3015, 4489, 5025, 5625, 8375, 13467, 15075, 22445, 25125, 40401, 41875, 67335, 75375, 112225, 125625, 202005, 336675, 376875, 561125, 1010025, 1683375, 2805625, 5050125, 8416875, 25250625]

約数ペア:

[(1, 25250625), (3, 8416875), (5, 5050125), (9, 2805625), (15, 1683375), (25, 1010025), (45, 561125), (67, 376875), (75, 336675), (125, 202005), (201, 125625), (225, 112225), (335, 75375), (375, 67335), (603, 41875), (625, 40401), (1005, 25125), (1125, 22445), (1675, 15075), (1875, 13467), (3015, 8375), (4489, 5625)]